Re: [PATCH v2 2/5] drm/panel-simple: Don't wait longer for HPD than hpd_absent_delay

2021-01-26 Thread Stephen Boyd
Quoting Douglas Anderson (2021-01-15 14:44:17) > If a panel has an hpd_absent_delay specified then we know exactly how > long the maximum time is before HPD must be asserted. That means we > can use it as a timeout for polling the HPD pin instead of using an > arbitrary timeout. This is

[PATCH v2 2/5] drm/panel-simple: Don't wait longer for HPD than hpd_absent_delay

2021-01-15 Thread Douglas Anderson
If a panel has an hpd_absent_delay specified then we know exactly how long the maximum time is before HPD must be asserted. That means we can use it as a timeout for polling the HPD pin instead of using an arbitrary timeout. This is especially useful for dealing with panels that periodically